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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Immunochemical characterisation of tachykinin immunoreactivity in the nervous system of the garden snail, Helix aspersa.

1. Circumoesophageal ganglia and foot muscle of the garden snail, Helix aspersa, were subjected to immunocytochemistry using antisera to the tachykinins, substance P ( SP), neurokinin A (NKA), kassinin (KAS) and eledoisin (ELE). 2. Immunoreactivity in neuronal somata and fibres was detected only with the SP antiserum. 3. SP and NKA radioimmunoassays were performed on extracts of circumoesophageal ganglia. In common with immunocytochemistry, immunoreactivity was only detected with the SP antiserum. 4. Gel permeation chromatography of extracts resolved a single peak of immunoreactivity eluting slightly later than synthetic mammalian SP. Reverse-phase HPLC of immunoreactive fractions resolved two immunoreactive peptides representing oxidised and reduced forms of a single peptide. 5. These data suggest that the nervous system of H. aspersa contains a single tachykinin with C-terminal structural characteristics similar to mammalian SP.[1]

References

  1. Immunochemical characterisation of tachykinin immunoreactivity in the nervous system of the garden snail, Helix aspersa. Leung, P.S., Shaw, C., Johnston, C.F., Irvine, G.B. Comp. Biochem. Physiol. C, Comp. Pharmacol. Toxicol. (1992) [Pubmed]
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